Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – 450nm 5W Laser Engraving Module Blue Light [EU] (-3 USD)
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (118.15 USD): 2022ACTIESNL
Coupon (119.42 USD): BG00c906
(CouponsFromChina.com tip: apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): b98fde, e2bcea, TTxBG10, BG2646, BGBFCR42, BG5784, BGVDay10%off, 2880c7, AFfbG10, BGAFF10OFF, BG5617, bGhOnEy10, BGM358, BGDCLM008, BG10914, BG11493, BgoFErTaSchInA10, BgcLuBofErtA10, 7d18f7, BGCuponation10, BGLa5617, BGLaserEquip, BGHONEY2110, 7bcdf9, BANGGOODSD, 00c906, ADMITAD2212
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – 450nm 5W Laser Engraving Module Blue Light [EU] (-3 USD)
Price history and price alert
Here is price history (for all/most countries) for 450nm 5W Laser Engraving Module Blue Light.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).